Wheel rim



J. L. GREENWOOD April 3, 1928.

WHEEL RIM- izinal Filed Sept. 8. 3.924

r/ r I 'm 'IIIIIIIIIIIIA I! III A J1 Greenwo ia,

Patented Apr. 3.192s.

' 'unrr'so' sTATEsr-ATENT; OFFICE.

usrnn Lnoronp ennsnwoon, or NORTH EAST Hanson, NOVA scorn, CANADA.

' WHEEL RIM.

Application filed September 8, 1924, Serial 170. 736,555. RenewedJanuary 10,1928.

My invention relates to a sectional rim and particularly to a rim, theelements of which are non-split or of unbroken'continuity.

The general object of my invention is to provide a sectional rim ofsimple elements adapted to be assembled on a wheel or demounted withfacilityand which when assembled will possess adequate strength andrigidity.

The nature of my invention and its distin-. guishing featuresand-advantages will clearly ap ear as the description proceeds.

I eference is to be had to the'accompanying drawings forming apart ofthis specification, it bein-gunderstood that the drawings are merelyillustrative of examples of the invention.

Figure 1 is aview ofa disk wheel embodymg m invention showing the outerface of the w eel in elevation, parts being broken away and others insection; Flgure 2 is an enlarged transverse vertlcal section in a laneindicated by the line- 2-2, Figure l, w1th the parts assembled andshowing a tire casing mounted thereon;

Figure 3 is a fragmentary transverse ver- 'tical section illustratingthe rim'parts disassembled;

Figure 4 is a perspective view of the outer rim element.

Referring at first more particularly to the form of the invention shownin Figure 1,

the numeral 10 indicates the inner disk or that disk at the inner sideof the wheel; 11, a wedge ring at the outer'side of the wheel, the disk10, having a hub 12 stamped integrall with said disk 10. A'disk 13 isprovide within the outer ring 11 and adjacent thereto and is formed withan integral hub member 14. A hub sleeve-15 fits within and is welded orotherwise made solid with the hubs 12 and 14. Screws or bolts 16 arepassed through the disks 10 and 13 and through ring 11 to bind the wholefirmly together.

The sectional-rim comprises an inner rim adapted to lie at the outerside of the outer flange B of tire casing A. Against the reentrant angle19 formed 'by'the rim element 17 and flange 18 the peripheral edge ofthe disk 10 bears. The flange 18 is at the oppothe inner rimelement 17extends transversely from one side of the wheel to the other";

At the juncture of the flange 18 with rim 17, at the outer surfacefanannular bead 20 is produced on which is adapted to bear one edge of theouter rim element 21. Said outer rim element 21 is provided at the outerside of the wheel with a bead or flange 22 to bear against theadjacentflange O of the tire casln-g Thus, the rim element 21 has its tireretaining flange 22 at the outer side of the Wheel and atthe oppositeside of the wheel presentsan edgeportionth rest'on the bead 20 of theinner rim 17. The outer periphery of the wedge ring 11 of the wheel isbeveled to conform tothe curved outer surface of the flange 22.

The tightening up of the screws or bolts 16 causes the periphery ofinner. wheel disk 10 to bear against the angle 19 and exerts a,

pressure radially outward and laterally inward against tne inner rimelement 17 At the same time the wedge ring 11 exerts a pressure in adirection laterally inwardly against the flange 22 of the outer rimelement 21 forcing the inner edge portion of said element 21 at theinner. side-of the wheel against the outer bead or rim 18.

The pressure on the wedge ring 11 forcesits lugs 111- between the rim'17 and the rim 21 and said lugs together with the annular. protuberance20 serve to space said rims 17 and 21 from'each other.

In the disk 13 is an inward depression 113 (Figures '1 and 2) affordingclearance for and making accessible the tire valve D.

I would state in conclusion that while the illustrated examplesconstitute practical em-- bodiments of my invention, I do not limitmyself strictly to the exact details herein illustrated, since,manifestly, the-same can the appended claims.

Having thus described my invention, I claim:

1. In a wheel structure, a wheel disk 1 formed with a laterallyextending peripheral flange, said flange terminating in a radiallyprojecting tire retaining flange, a tire rim section adapted to looselyfit about the laterally extending flange, said tire rim section beingformed with a tire retaining flange complemental to the firstnamed tireretaining flange, wedgev lugs extending between the i ilnse'ction andlateral flange, a second Wheel-disk having its periphery fitted withinthe outer edge of the lateral flange, and aplura'lity of securing boltseach of which serves to hold a Wedge lug in position and secure togetherthe two wheel disks, whereby a composite and rigld wheel structure 1sprovided.

a radially projecting tire retaining flange e joined to said perip ralflange at its free end, the junction of said flan es defining a 2. In awheel structure, a wheel disk ter- 1 minating in a laterally extendingperipheral flange slightly diverging toward its free end,

beveledperipheral edge fitted within the said 20 angle. JASPER 'LEOPOLDGREENWOOD.

